Results 61 to 70 of about 19,606 (183)
Abstract High morphological and ecological diversity displayed by European bullheads led Freyhof et al. (2005) to describe 15 nominal species. However, the basis for declaring these nominal species is contentious due to a lack of rigorous statistical analysis of morphological variations among populations, limitations in the inferences made from ...
David S. Murray +3 more
wiley +1 more source
Hydrodynamic journal bearing is an important part of rotary machine and faces many challenges such as high rotating speed, heavy specific pressure, and large temperature rise with the development of industry.
Yu Zhang, Guoding Chen, Lin Wang
doaj +1 more source
Nanozymes (NZs) have emerged as versatile artificial enzymes with tunable catalytic properties driven by atomic coordination, defect engineering, and surface chemistry. This review presents a bio–nano interface framework linking synthesis strategies, structural design, and catalytic behavior within complex biological microenvironments.
Karen Guadalupe Quintero‐Garrido +6 more
wiley +1 more source
The Hydrodynamical Theory of Multiple-Film Journal Bearings
Several kinds of journal bearings, which are designed to have a multiplicity of convergent oil films in the bearing instead of the conventional journal bearings whch have single oil film in the bearing, are used as precision high speed bearings with very little clearance.
SASAKI, Tokio, MORI, Haruo
openaire +2 more sources
ABSTRACT The rapid expansion of cage culture for Nile tilapia (Oreochromis niloticus) in Lake Victoria is central to food security and profitable development in East Africa. Nevertheless, viral conditions affect the sustainability of this sector, with significant imbalances in livelihood, trade and aquaculture adaptability.
Richard S. Komba, Chacha J. Mwita
wiley +1 more source
Prediction on Flow and Thermal Characteristics of Ultrathin Lubricant Film of Hydrodynamic Journal Bearing. [PDF]
Jiang Y, Liang B, Huang Z, Chen Z, Xu B.
europepmc +1 more source
An Experimental Investigation of Oil Film Temperatures in Elliptical Profile Journal Bearing
Hydrodynamic journal bearings experience significant variation in oil film temperature. Reliable data of operating temperatures in these journal bearings are very useful and important for practical bearing designers and mathematical modellers.
Rakesh Sehgal +2 more
doaj +1 more source
The performance of supporting journal bearing of the star gear transmission system in the geared turbo fan engine (GTF) is analyzed. A thermal-elastohydrodynamic analysis model was developed for textured journal bearing used in high-speed and high ...
doaj +1 more source
A significant variation in oil film temperature has been observed in hydrodynamic journal bearings. Here, a journal bearing test rig has been developed to measure the oil film temperature on the three circumferential planes of the journal bearing ...
Rakesh Sehgal
doaj +1 more source
This study experimentally investigated the possibility of controlling the static lubrication characteristics of hydrodynamic journal bearings by cooling and heating locally.
Toshiharu Kazama +3 more
doaj +1 more source

